Container



March 23, 1943. Q B, GRAVES ET AL 2,314,338.

CONTAINER Filed NQv. 8, 1940 I I? 9 @d I im I I i Z f v 1 III III Y /0 I I lPatented Mar. 23, 1943' UONTAINEB Charles B. Graves, Maplewood. and VRalph B.

Busch. Webster Groves, Mo., assigner: to Sefton Eibre Can Compannllaplewood, Mo., a corlporation of Delaware Application November s, 1940, semi No. 384,134

s emma (ci. zza- 5.5)

This invention relates to containers, particularly paper 'cans or cartons. The invention has for its principal objects to provide a'. hermetically sealed lining for such cartons that is impervious v to fluids and oil and grease containing products and can be readily embodied in said carton during the assembly thereof and Asealed after packing. Other objects are to provide for closing the carton body after sealing the lining, to enable the carton to be quickly and easily opened to permit access to be had to the sealed lining and to provide for simplicity and cheapness of construction.- The invention consists in the sealed carton vand inthe construction, combinations and arrangements o! parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification and, wherein like sym bols refer to like parts wherever they occur,

Fig. l is a side elevational view of a sealed carton embodying our invention.

Fig. 2 is a view similar to Fig. 1, showing the carton with its outside wrapper broken and the slip cover detached,

Fig. 3 is an enlarged central vertical longitudinal section through the carton on the line 3-3 in Fig. 1,

Figs. 4 and 5 are further enlarged fragmentary l sections/similar to Fig. 3,

Fig. 6 is a fragmentary view similar to Fig. 3,

showing the cover detached from the carton; and

Figs. 7 and 8 are fragmentary sectional views similar to Figs. 4 and 5, respectively, illustrating a modified form of carton.

'I'he body of our carton comprises an outer tube I, an inner tube 2 snugly fitting said outer tube and terminating short of both endg thereof and closures 3 and 4 for the respective ends of said carton. The outer tube l preferably comprises one or more convolutely wound, adhesively united, strips of paper or like materials; and the inner tube 2 preferably comprises one or more spiraily wound, adhesively united, strips of paper or like material. The end closures l and 4 are made of paper or the like, the end closure 3 being in the form of a plain disk, andl the end closure l comprising a disk with a. peripheral or rim flange 5.

lThe carton' is provided with a hermetically sealed lining of thin transparent impervious material that becomes co-adhesive or self sealing upon the application of heat thereto. A material having such characteristics has become known under the trade-name of Pliofllm, which is made from a rubber base and is waterproof and rials which heretofore couldnot'be packed in paper containers,

closures] and l for the respective ends thereof. 'I'he tube l is formed of a helically wound strip of Pliofllm or other impervious heat scalable material having its adlacentedges overlapped and hermetically sealed by the application of heat thereto. The tubular Pliofilm lining member 3 extends from end to end of the paper inner tube 2 and is preferably formed in andadhesively se cured to the inner face of said paperinner tube during the winding thereof. The end closures 'l and l of the lining are also made `of an imperviousI heat scalable material, such as Plioillm.

The Pliotllm end closure 1 covers the inner face of the paper end closure l and the outer face of the peripheral -flange l thereof and is adhesively lor otherwise secured to said paper end closure for unit insertion therewith. The flanged, Plioiilm lined end closure l snugly nts within the Plioiilm lined paper vinner tube 2, I preferably with its peripheral flange l facing outwardly and terminating flush with one end of said tube; and said end closure is hermetically sealed in place by the application of heat or an adhesive to the contacting peripheral surfaces of Plionlm end closure l and the Plionlm lining tube l. The paper outer tube l of the carton is then' bent inwardly across the flush ends of the paper inner tube 2, the tubular Pliofilm lining t' and the peripherally flanged portions of the paper, end closure I and the Plioillm end closure l,

and is thence bent inwardly alongside of the inner face of the peripheral flange 5 of saidpaper end closure.

The plain, unflanged paper end closure disk I 8 snugly fits within the paper outer tube I and is held in abutting relation to the adjacent end of the Pliofllm lined paper inner tube 2 by folding the end portion of said outer tube inwardly upon itself, as at l, to bring said portion into endwise abutting relation to the outer face of said end` As shown in the drawings, the l 'hermetically sealed lining comprises a tube I and place. f

' otherwise secured to said sections for holding them together in endwise abutting relation and for sealing the Joint therebetween and a rlp or opening thread II extending around said outer tube beneath saidl wrapper opposite said` Joint with one end left exposed.

The hereinbefore described carton is simple and-inexpensive and has a moisture and greaseprooi hermetically sealed lining. After the carton is packed, lthe sealing of the impervious `lining is completed merely byv sealing the Plioillm end closure'or diaphragm l in the open end there oi, aftergwhich the open end of the body ofthe carton isclosed by inserting the paper end c1osure disk). therein and bending the adjacent end of the paper outer tube I' over said disk. To

"open the sealed carton, the. wrapper i2 is'broken along the joint between the-two sections 'Il and il oi' the outer tube' I by a pull on the rip thread and from said inner tube. whereby access may be had to said breakable diaphragm.

2. A sealed container comprising an. outer paper tube, an inner paper tube snugly titting l said outer tube. a tubular lining of impervious material in said inner tube. a paper end closure snugly tting in one end of said inner tube, a

lining of impervious material for said end closure sealed along its peripheral edge to said tubular lining, said outer tube being bent around `said end o! said inner tube. a breakable dlaphragm of impervious-material in said inner tube at 9 the other' end thereof sealed along lits peripheral .edge to said tubular lining, and a paper end closure snugly iitting said outer tube" in abutting relation to said other end of said i vinner tube,said outer'tube being bent inwardly Il, thereby severing the connection between the y twoouter tube sections andv permitting the shorter, cover section Il,'together with the end closure disk 'I therein to be removed endwise from the inner tube 2 ai'terA the manner oi' a. slip cover` v'I'he removal of this slip coverlsecr tion exposes the 'Pliotilm end closure or dlapnragm sof tue nermeucany sealed lining which4 closure may then be easily broken to permit acsection,` thereof may be replaced to protect any unused product therein. K In the modified construction shown in Flg.,'l,

' over said last mentioned end closure, the porl -tion of the outer tube with the last mentioned endclosuretherein being detachable endwise from the remaining portion of said outer tube and from said inner tube. whereby access may heat scalable material in said the paper end closure I has an upstanding pe-f ripheral i'i'angel 3*; and this ilange, together with said breakable diaphragm.

3. A sealed container comprising an outer paper tube, an inner paper-tube snugly ntting said outer tube. a tubular lining oi' impervious inner tube and adhesively secured to the inner face thereof, a peripherally ilanged paper and closure snugly iltting vin one end oi' said inner tube, a lining of impervious `heat scalable material adhesively secured to said end closure and heat sealed along its peripheral edge to the inner surface oi' saidv tubular lining, said outer tube. being bent inward-v lyover said end of said inner tube andthe clothe adjacent end portion of the paper outer tube i.is.folded or doubled back inwardly, as atl. into `endwise abutting relation toy the outer end "face of the end closure. thus ilrmly securing the end closure within the outer tube.A In the modiiication shown in Fig. 8, the peripheral edge iiange Il of the' paper end closure l and its lining l and the adjacent end portions. oi' paper outer tube I paper inner tube 2 and the tubular lining 6 are all doubled back over the end closure intoV .I endwiseabutting. relation to the outer face thereoi' to thereby securely hold the end closure 'in What we claim is:

l. 'A sealed container comprising an outerpaper tube, an inner paper tube snugly iitting said 4outer tube, a tubular lining of impervous material in said inner tube, a peripherally ilanged paperend lclosure snugly-fitting in one end of.

said inner tube. la peripherally flanged lining oi impervious material i'or said end closure sealed sure therein,` a breakable diaphragm' of impervious heat scalable material in the other end of said inner tube and heat sealed along its peripherahedge to theinner-surface of said tubular lining and -a paper endl closure snugly Qiltting said outer 'tube in abutting'relation to 4. A sealed carton comprising an outer tube,l

said other end of said inner tube, said outer tube being bent inwardly over .said lastmen` tioned end closure, the portionof the outer tube with the last mentioned end closure thereinbein'g detachable endwise from the remaining portion of said outer tube and vfrom said Ainner tube.

whereby access may be `had to said 'breakable diaphragm.

an inner tube snugly-iitting said outer tube, a

l tubular lining oi' impervious vmaterial in said inner tube, an end closure snugly fitting in' one end of said inner tube, a lining of impervious material for said end closure sealed along its peripheral edge to saidftubular lining, said outer along its peripheral edge to said tubular lining. 1

the peripheral `anges oi' said end closure and its lining, together withthe. adjacentgend portions of said paper inner and outer-tubes and and a` peripherallynanged paper end closure snugly fitting saidouter tube in abutting rela- .tion tosaid other end of said inner tube, the pe' ripheraliiange of said last mentioned end' closure and the adjacent end of said paper outer tube being doubled back' over the outer'end face of said last mentioned end closure, the porbeing bent around said end of said inner 'tube." afdiaphragm of impervious material in said inner tube'at the lother end thereof sealed along its peripheral edge to said tubular lining,

and an end closure snugly ntting said outer tube in abutting relation to said other end of `tion of the outer. tube with the last mentioned said inner tube, said outer'tube being bent inwardly over said last'mentioned end closure, said outer tube comprising two sections",Y an outside wrapper for holdingl said sections. together in endwise abutting relation andfforlfsealing the joint therebetween, and arip 'thread extending around said outertube beneathLl-said wrappery opposite said Joint with on` end lett exposed. whereby said wrapper may broken along said Joint by a pull on said thread to thereby permit theouter tube section having said secour! mentioned end moved endwisefrom nest sealed sions its 'nimm o: oil-proof neat ed new closure therein to be re- Y said inner tube `whereby seeess may be had to saiddisphraam.

6. A lealed leontninercomprising en outer peper tube, nnjlnnerpoper tube snuglyV -iittint nid outer tube, a. tubular inner surisoe of said inner tube, a paper end closure snugly fitting in one end of said inner 10 nested sion! iteperiphersl 'edge to said tubing.: I

end closure snuzlyrnttmgwi-wtube s. breakeble die--- sure, saidouter tube comprising two sections.. l

lining ot oil-proof heat senlable materiel edhesively. secured to the along said joint end of seid inner tube, said outer tube being bent inwardly over seid last mentioned end eloan outside wrapper for holding said .sections together in endwise abutting relation and for sealing the Joint therebetween, and a. rip thread extending around said outer tube'beneeth seid wrapper-opposite seid'ioint'with one end left exposed, whereby said wrapper may be broken y by'a pull on saidripthreadto thereby permit the outer tube section having the v second mentioned end closure .therein to be rey 'moved endwise from said inner tube whereby 15 necesa maybehad to seid diephraem.

feminins mamme@ RALPH n. nuscrn said outer tube in abutting relation to seid .other i 

